Product Model: F9G-BK7-F9934 Application: eGPU for NUC / ITX / / Notebook PC Product Name: Oculink External Graphics Docking Station Transmission speed: PCIe 4.0 x4, effective bandwidth 64Gbps Product use: for graphics card external or other PCIe devices Product Description: Oculink is an interface that is adapted from the NVME SSD slot on the motherboard of the computer, NVME takes the pure PCIe channel, so the Oculink external graphics docking station also takes the PCIe channel, which has a small performance loss. Compared to traditional -compatible adapter solutions, Oculink's effective bandwidth can reach 64Gbps under PCIe 4.0 x4, far exceeding -compatible solutions. Friendly reminder: OcuLink does not support hot-swap Power supply: Support standard ATX 500W power supply, power supply needs to be prepared by the buyer. Specifications: 25cm Color: Black Material: PCB+Metal Package Contents: 1 * Graphics card expansion dock 1 * Connection cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.